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  • Waiting for answer The molecular formula for glucose is C6H12O6. What would the...

    ##C_18H_32O_16## since this is a dehydration reaction, it means that when two molecules are linked together, there will be one molecule of water ##H_2O## removed. Therefore, the mo...

  • Waiting for answer A sphere with a radius of 1.7cm has a surface area of? a) ##...

    a) ##3.6*10^(-3) m^2## a) is the only possibly correct answer since the other two have units which are not areas (both ##m## and ##mm## are linear measures). We can verify the area...

  • Waiting for answer What the mass percent of aluminum in ##Al(OH)_3##?

    ##color(magenta)"34.59%"## In order to calculate the mass percent of aluminum in that ionic compound, we're going to need two things: ##color(blue) "1: The formula mass of the entir...

  • Waiting for answer How do you find the linear approximation of ##(1.999)^4## ?

    You can use the tangent line approximation to create a linear function that gives a really close answer. Let's put ##f(x) = x^4,## we want ##f(1.999)## so use x= 1.999 and the nearby point of tangency a = 2. We'll need ##f'(x)=4x^3## too. The linear approximation we want (see my other answer) is...

  • Waiting for answer How is coal formed?

    Coastal peat swamps build up over time, are buried by rising sea levels and eventually get compressed into coal. Coal starts off as vegetative that forms often in coastal regions....

  • Waiting for answer What is the meaning of Anhydrous, Hydrous, and Undissociated...

    Anhydrous (Greek an- without + -hydor water) means “containing no water”. Ether that contains no dissolved water is called anhydrous ether. When we remove the water of crystallization from a hydrate such as MgSO₄•7H₂O, we call the MgSO₄ anhydrous magnesium sulfate. Hydrous (Greek hydor water) means...

  • Waiting for answer Is addition of sodium in to water is a chemical change?

    Yes, the reaction between sodium metal and water is a chemical change. A chemical change is said to take place when two or more substances interact if this interaction results in the...

  • Waiting for answer Why do atoms emit or absorb light of specific wavelengths?

    The electrons in an atom can only occupy certain allowed energy levels. When an electron drops from a higher energy level to a lower one, the excess energy is emitted as a photon of light, with its wavelength dependent on the change in electron energy....

  • Waiting for answer In the equation ##R + 14 = 39##, what is the value of ##R##?

    ##R=25## The equation is: ##R+14=39## Subtracting ##14## from both sides: ##R+14-14=39-14## ##R=39-14## ##R=25## Hence, the value of ##R## is ##25##

  • Waiting for answer How do you evaluate the integral of ##cscx dx## between the...

    To find the integral of ##intcscxdx## between [##pi/2##,##pi##], use this theorem : ##intcscx## = Ln ##abs(cscx+cotx)##+c when written in proper notation it should look like this: ##int_(pi/2)^(pi)cscxdx## ##[Ln(abs(cscx+cotx) )]_(pi/2)^(pi)## to evaulate, you must plug in both upper and lower lim...

  • Waiting for answer Why is radial symmetry uncommon for land animals?

    Land Animals have different appendages and can only be bilateral. Thus, land animals can move around. Bilateral symmetry is associated with cephalization, meaning that land animals have a central nervous system and sensory organs, being better able to detect predators and act accordingly. Whereas, m...

  • Waiting for answer What is the object of a gerund?

    If by "object of a gerund" you mean "purpose of a gerund", then a gerund is a way of converting a verb into a noun (by adding the ...ing suffix). If you meant "object" in the sense o...

  • Waiting for answer What do animal organ systems include?

    All the organ systems have cumulative effects on the body. The 11 organ systems of the human body are the integumentary, muscular, skeletal, nervous, circulatory, lymphatic, respirat...

  • Waiting for answer What type of wave is a sound wave?

    Longitudinal wave A sound wave traveling through air is an example of a longitudinal wave. These are characterized by motion of particles being parallel to motion of the wave.

  • Waiting for answer How do you find integral of ##((secxtanx)/(secx-1))dx##?

    Another way of doing this is to consider that ##d(secx) = secxtanx*dx## That is, the derivative of ##secx## is ##secxtanx## ##= int(secxtanx)/(secx - 1)dx = int d(secx)/(secx - 1)## This is the same as letting ##u = secx## We then have, ##int(du)/(u - 1) = ln(u - 1) + C = ln(secx - 1) + C##

  • Waiting for answer A close box made of wood 1cm thick has ecteenal dimensions 2...

    Here's what I got. The idea here is that you need to determine the volume of the wood needed to make the box. To do that, you will have to consider two boxes an "outside" box wit...

  • Waiting for answer A 4 g air-rifle pellets is fired into a target block attache...

    I divided the problem into two parts: Collision and Movement on the Ramp: and finally: Hope it helps...But please check my maths!

  • Waiting for answer How many grams of lead chromate are formed from the reaction...

    Here's what I got. Since you didn't provide the concentration of the lead(II) nitrate solution, we're going to have to improvise a bit here. You're dealing with a in which aqueou...

  • Waiting for answer What is the balanced ionic equation for the reaction of IO3-...

    ##"IO"_text(3(aq])^(-) + 5"I"_text((aq])^(-) + 6"H"_text((aq])^(+) - 3"I"_text(2(aq]) + 3"H"_2"O"_text((l])## The iodate, ##"IO"_3^(-)##, and iodide, ##"I"^(-)##, ions will react in...

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